Double-seated valve.



PATENTED APR. 2, 1907.

J; B. PURSER. I DOUBLE SEATED VALVE.

APPLIOATION. FILED MAR. 28, 1906.

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UNITED srAr s PATENT OEEIOE.

JAMEs EDWAE' PURSER, OE WINDSOR, ONTARIO, OANADA, AssIeNo TO JOHNMOREHEAD, OF DETROIT, MICHIGAN.

DOUBLE-SEATED VALVE.-

' .To all whom it may concern.-

Be it known that I, JAMES EDWARD PUnsER, a subject of the King of GreatBritain, residing at WVindsor, county of Essex, Province of Ontario,Dominion of Canada, have invented a certain new and useful Improvementin a Double-Seated Valve, of which the following is a specification,reference being had to the accompanying drawings, which form a part ofthis specification.

My present invention is designed to provide a double-seated valve ofnovel construction and utility, the same being more particularlydesigned and adapted to be em ployed in connection with a separatorembodied in an application prepared and executed by me of even dateherewith, said valve being utilized to control the communication of twochambers the one with the other, the one being in the nature of areceiving-chamber'and the other in the nature of a discharge chamber,the discharge-chan1ber as embodied in said concurrent application beingdesigned to communicate steam simultaneously to the top of the twotanks, the passage of the steam to both of the tanks being controlled bya single valve embodied herein.

To these ends my invention consists of the construction, combination,and arrangement of parts shown in the accompanying drawings anddisclosed in the following description and claims.

Figure 1 of the drawings is a view in vertical section, showing parts inelevation. Fig. 2 is a similar view illustrating a modification of myinvention.

In the drawings, a and I) represent two chambers, the one located abovethe other, one of 'said chambers being a receivingchamber and the otherin the nature of a discharge-chamber, a diaphragm 0 being locatedtherebetween, into which diaphragm is engaged a valve case or cage,(indicated at d.) Said case is provided toward its lower end with adiaphragm, (indicated at 8,) the diaphragm and adjacent portion of thecase forming a valve-seat f, said case being provided, further, with anadditional valveseat, (indicated at 9,) the case'being constructed toform a chamber it between the valve-seats. The diaphragm and wall of thecase form an inlet-passage t' and an outletpassage in the form shown inFig. 1 of the Specification of Letters Patent; Application filed March28, 1906. Serial No. 308,570

Patented April 2, 1907.

drawings, a double-seated valve, having valve-heads (indicated at k andZ) seated upon the seats f and g, the valve being actuated in anysuitable manner, as by, means of a lever m, fulcrumed, as at n, upon ayoke 10, said lever being engaged with a stem 9 of the valve. It will beobvious that steam, for example, admitted into the chamber a will passthrough the channel i into the chamber h of. the valve-case, and whenthe valveheads are open the steam will also pass from the chamber hthrough the channel 3' into the chamber 6. Obviously my improved valveis an equalized valve, as the steam admitted into the chamber h willpress equally against both of the valveheads.

While, as above observed, my improved valve is especially adapted to beused in connection with a separator embodied in my concurrentapplication above referred to, to govern the passage of steam from areceiving-chamber into a discharge-chamber and from thedischarge-chamber into the top of two water tanks, as embodied in saidap lication, I would have it understood that do not limit myself solelyto such use, as my invention contemplates any and every use to which itmay be found applicable, and instead of controlling the passage of steamfrom a lower chamber into an upper chamber in the manner illustrated inFig. 1 and as above described the passageas of water, for example'mightbe in an opposite direction and still be governed by essentially thesame form of valve.

In the modification illustrated in Fig. 2 the diaphragm 6 extends in thedirection opposite that shown in Fig. l, forming an inletchannel r,leading from the chamber 6 into the chamber h, and an outlet-passage 8,leading from the chamber h into the chamber a.

By such a construction the. steam or water, for example, in thechamber 1) may pass through the valve into the chamber a.

What I claim as my invention is- 1. In combination two chambers locatedthe one above the other, the one being a receiving and the other adischarge-chamber, a valve case or cage provided with an interiordiaphragm engaged with the walls of said chambers and forming with thewall of the case an inlet and an outlet channel communicable through thevalve-case. and a doubleseated valve to control said communication, saidcase passing through the upper wall of the upper chamber.

2. in combination two chambers located the one above the other, the onea receiving and the other a discharge chamber and having a diaphragmtherebetween, a valve case or cage engaged in said diaphragm and in theupper wall of the upper chamber, and forming an interior chamber withinthe case, said diaphragm forming within the case an inlet and an outletpassage communicable the one with the other through the interior chamberof the case, and a double-seated valve to control said communication.

3. In combination two chambers the one above the other, the one areceiving-chamher and the other a discharge-chamber, a valve case orcage projecting through the wall of the upper chamber forming aninterior chamber communicable with the receiving and the dischargechambers, and provided with double valve-seats and a doubleseated valveseated upon said seats to con trol said communication, said valveprovided with a stem projecting through the case, and means to actuatethe valve.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JAMES EDYVARD PURSER. Witnesses N. S. WRIGHT, ETHEL M. SPIELBURG.

